TS

Takamasa Sakai

DC Dainippon Screen Mfg. Co.: 14 patents #24 of 977Top 3%
CC Clarion Co.: 10 patents #52 of 721Top 8%
TT The University Of Tokyo: 2 patents #500 of 2,633Top 20%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
Overall (All Time): #127,169 of 4,157,543Top 4%
29
Patents All Time

Issued Patents All Time

Showing 26–29 of 29 patents

Patent #TitleCo-InventorsDate
4449141 Variable capacitor Yasuo Sato 1984-05-15
4412906 Sputtering apparatus Yasuhiko Sato, Shoichi Minagawa 1983-11-01
4365216 Surface-acoustic-wave device Shoichi Minagawa, Takeshi Okamoto 1982-12-21
4357553 Surface-acoustic-wave device Shoichi Minagawa, Takeshi Okamoto, Morihiro Niimi 1982-11-02